Pneumatosis intestinalis and pneumoperitoneum secondary to treatment with lenvatinib.

Pneumatosis intestinalis is a rare disorder that can be secondary to a variety of causes among which includes oncological treatment. Most cases due to oncological treatment are reported with targeted therapy but there is growing number of cases secondary to tyrosin kinase inhibitors that includes Lenvatinib which it can be used in the treatment of hepatocarcinoma.

Late metastases: a rare cause of diarrhea.

We present the case of a 64-year-old female with personal history of breast carcinoma diagnosed in 2011, treated and discharged from the Oncology service after 10 years disease-free who, 21 years after the diagnosis, undergoes a colonoscopy with biopsy sampling due to a 2-year period of diarrhea and weight loss, which histological study show infiltration of the large intestine's by breast carcinoma. Due to the usual lymphatic widespread, metastases of breast cancer in the gastrointestinal tract are extremely rare with nonspecific symptoms, long latency periods and poor prognosis.